257130808

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{491}}^1\times {\mathrm{541}}^1$

素因数の和:1060

約数の個数: 48

約数和(自身を含む): 531994680

約数和(自身を除く): 274863872

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 491, 541, 968, 982, 1082, 1964, 2164, 3928, 4328, 5401, 5951, 10802, 11902, 21604, 23804, 43208, 47608, 59411, 65461, 118822, 130922, 237644, 261844, 265631, 475288, 523688, 531262, 1062524, 2125048, 2921941, 5843882, 11687764, 23375528, 32141351, 64282702, 128565404, 257130808]

約数ペア:

[(1, 257130808), (2, 128565404), (4, 64282702), (8, 32141351), (11, 23375528), (22, 11687764), (44, 5843882), (88, 2921941), (121, 2125048), (242, 1062524), (484, 531262), (491, 523688), (541, 475288), (968, 265631), (982, 261844), (1082, 237644), (1964, 130922), (2164, 118822), (3928, 65461), (4328, 59411), (5401, 47608), (5951, 43208), (10802, 23804), (11902, 21604)]